barnes



No. 11,804. PATENTED OCT. 17, 1854.

J. T. BARNES. POWER LOOM.

UNITED STATES PATENT OFFICE.

JOSEPH T. BARNES, OF MANAYUNK, PENNSYLVANIA.

POWER-1400M.

Specification of Letters Patent No. 11,804, dated October 17, 1854.

To all whom it may concern:

Be it known that I, JOSEPH, T. BARNES, of Manayunk, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in PowerLooms; and I do hereby declare that thefollowing is a full, clear, and exact description of the same, referencebeing had to the accompanying drawings, forming part of thisspecification, in which- Figure 1, is a transverse vertical section of aloom having my improvements. Fig. 2, is a plan of the same. Fig. 3, is aside view of the belt shipper and the mechanism connected therewith.Fig. 4, is a front view of one of the bearings of the main shaftwith asection of part of the framing.

Similar letters of reference indicate cor responding parts in theseveral figures.

This invention consists in certain new arrangements and contrivances,whereby the forward or beating up movement of the lay is caused to bearrested by the sliding back of the journal boxes of the crank shaft ofthe loom, in time to prevent injury to the cloth or the loom, when theshuttle is arrested in its flight outside the shuttle box, which saidarrangements and contrivances also dispense with and perform the duty ofthe protector commonly employed to throw the loom out of gear in case ofsuch accidents.

It also consists in certain contrivances for returning the crank shaftto its operative position as soon as the loom is thrown in gear afterthe cause of stoppage is removed.

To enable those skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A, is the framing of the loom which is similar to that of other looms,except that the top parts of the side pieces are properly constructed toform ways a, a, upon which the journal boxes B, B, of the crank shaft C,are capable of sliding back and forth, without working out of gear withthe cam shaft D. These ways, to be properly constructed, should be inthe form of arcs described from the axis of the shaft D, and theirtransverse form should be that. of a dovetail or any other form capableof preventing the journal boxes rising from them. The journal boxes areconfined in their proper position for the operation of the loom by meansof two hooks Z), 6, which are pivoted, one to each bearing, and hook onto pins or projec of wood whose length is about equal to the a width ofthe reed. This bar F, when the loom is at work, stands either above orbelow the cloth in such position that the race beam will just pass underit without touching, and the face of the reed arrive within a veryshortdistance of it, say one fourth of an inch when the filling isbeaten up. The shaft or roller E, carries on its lower side two otherL-shaped arms 9, g, whose weight causes one of them to restat all timesexcept when the bar F, is pushed forward upon a stud or projection h, onthe inside of the framing. The ends of these armsare bent inward asshown at z', i, in Fig. 2, or otherwise constructed to form liftingpieces 2', 2, to'stand under the ends of the hooks Z 6, with which they,when the arms g, g, are supported by the stud it, are nearly in closecontact.

As long as the shuttle continues to enter the shuttle boxes, the journalboxes, and the shaft or roller E, and its appendages remain stationary;but if the shuttle fails to enter its box before the lay arrives nearthe bar F, the beating up brings the shuttle in contact with the saidbar, and pushes it forward as shown in red outline in Fig. 1, therebythrowing up the lower parts of the arms g, g, and causing them to liftthe hooks b, b, from the pins or projections o, c, and set the journal.boxes free to be drawn back by the springs (Z, (Z, which then actpromptly. This drawing back of the journal boxes and crankshaft,although the revolution of the shaft is not instantly arrested, not onlyprevents the further advance of the lay, but carries it a short distanceback, even though the distance between the lay and the shaft continuesto increase owing to the continuance of the revolution ofthe shaft untilthe loom is thrown out of gear by the shipping of the belt, which iseffected by a hooked rod G, which is attached to a spring shipper leverH, of the usual kind arranged in the usual way. This hooked rod isslotted to fit and slide freely upon a pin Z, in the outside of theframing, so that when the hook j, at its end is caught by one of thejournal boXes as the latter slides back it draws back the rod and drawsthe spring shipper lever from its notch and sets it free to move in therequired direction to ship the belt from the fast to the loose pulley.

The crank shaft is furnished near each journal box inside the framingwith a cam I, of scroll or other suitable form, which, when the belt isagain shipped onto the fast pulley to set the loom in motion, is caused;by the revolution. of the shaft, to work in contact with a fixed pin orprojecting piece 127, on the inside of the framing, and thereby throwthe shaft and its journal boxes forward until the hooks, b, b, which bybeing extended in front of their catches, are caused always to rest onthe pins or projections 0, 0, fall over and catch on the said pins orprojections, after which the crank shaft and lay are in proper conditionfor operation.

This invention, while it dispenses with the f protector commonlyemployed and performs l the same duty effects what'the protector doesnot, viz: setting free thereed, and.

allowing it to swing back when any obstruc- ,7

tion occurs in front of it. '7

What I claim as my invention, and desire to secure by Letters Patent, isY i 1. Fitting the journal boxes of the crank shaft to slide on ways onthe framing upon I which, when liberated by reason of some obstructionin front of the reed, they are;

capable of being drawn back to carry back the crank shaft from itsoperative position, and prevent the further advance of the lay,

by springs or their equivalents, substantially ve'niently placed for thebreast beam to pass under it, and for the shuttle, when the latter isarrested in front of the reed, to be driven against it and drive itforward, and thereby throw up two arms g, g, which are also attached tothe shaft or roller, and cause the latter arms to set free thejournalboxes of the crank shaft, and allow them to retreat and carryback theshaft, substantially as' herein set forth.

8. Furnishing the crank shaft with cams framing, and throw the shaft andits journal boxes forward to their operative position, 7

as herein fully described. I

' I J. T. BARNES.

Witnesses:

FREDERICK lVoLr, MIOHL. SNYDER, Jr.

